JPS6353050U

JPS6353050U -

Info

Publication number: JPS6353050U
Application number: JP14683986U
Authority: JP
Priority date: 1986-09-25
Filing date: 1986-09-25
Publication date: 1988-04-09

Description

[Brief explanation of the drawing]

第１図は、本考案の一実施例に係るタイミング
ベルトオートテンシヨナ装置の分解斜視図、第２
図は、第１図における第２のブラケツトとオート
テンシヨナとの取り付け状態を表す正面図、第３
図は、第１図において第１のブラケツトを回転可
能に取り付けているボルトの部分の縦断面図、第
４図は、第１図のタイミングベルトの配置を説明
するためのタイミングベルト配置図、第５図は、
従来のタイミングベルトオートテンシヨナ装置の
正面図である。１……タイミングベルト、２……アイドラプー
リ、３……第１のブラケツト、４……第２のブラ
ケツト、５……オートテンシヨナ、１２……ボル
ト、１６……ロツド、４１……ベルトケース（エ
ンジン本体）、４４……雄螺子部、４５……オー
トテンシヨナ側フランジ部、４６……工具係合部
、４７……ブラケツト側フランジ部、４８……雌
螺子部。 FIG. 1 is an exploded perspective view of a timing belt autotensioner device according to an embodiment of the present invention;
The figure shows a front view showing the installation state of the second bracket and autotensioner in Fig. 1, and a third one.
The figure is a longitudinal cross-sectional view of the part of the bolt that rotatably attaches the first bracket in FIG. 1, and FIG. Figure 5 is
FIG. 2 is a front view of a conventional timing belt autotensioner device. 1... Timing belt, 2... Idler pulley, 3... First bracket, 4... Second bracket, 5... Auto tensioner, 12... Bolt, 16... Rod, 41... Belt case (Engine body), 44...Male thread portion, 45...Auto tensioner side flange portion, 46...Tool engaging portion, 47...Bracket side flange portion, 48...Female thread portion.

Claims

[Claims for Utility Model Registration] An idler pulley that rotates in contact with a timing belt, a first bracket that rotatably attaches the idler pulley, and a cylindrical autotensioner that applies tension to the timing belt. , a second bracket to which the autotensioner is attached, the second bracket being fixed to the engine body, and one end of the first bracket being connected to the engine body by a bolt. A rod that is movably attached and projects elastically from the top end of the autotensioner presses the first bracket, so that the first bracket supports the bolt with the bolt as a fulcrum. In the timing belt autotensioner device, the timing belt autotensioner is configured to rotate around the timing belt, thereby applying a pressing force to the timing belt via the idler pulley, the autotensioner having a male screw portion and a male screw portion. The second bracket has an auto tensioner side flange portion that is located below the screw and protrudes beyond the male screw portion, and a tool engaging portion that is located at the lowermost end. It has a female screw portion that can be engaged with the male screw portion of the tensioner, and a bracket side flange portion below the female screw portion, and the auto tensioner side flange portion is in contact with the bracket side flange portion. The autotensioner is attached to the second bracket by screwing the male threaded portion into the female threaded portion while in contact with each other, and at this time, the rod of the autotensioner presses the first bracket. A timing belt autotensioner device characterized in that an optimum tension is applied to the timing belt by the protruding force of the rod.